Re: PSN server for PS4 and PS3

But my gut tells me that will not be the case, since PS4 will require you to pay for multiplayer, the PS4 will have dedicated servers. But if PS3 members also have to pay for multiplayer which I think they have to if I'm not mistaken, I don't see why they would be able to play since they will be on the same network.

Re: PSN server for PS4 and PS3

The company is currently claiming PS3 / vita owners won't have to pay for online multiplayer but that could suddenly change. Personally I rarely uses psn cause of the constant disconnections and the companies "support" blaming everything from my connection (which is not the case) to the phase of the moon.

Re: PSN server for PS4 and PS3

Will the PS4 and PS3 share the same PSN server? For example, if my buddy gets COD Ghosts for PS3 and I get it for PS4 can we get in the same parties and play together online?

That is up to the developer and publisher, Infinity Ward and Activision in the case of COD. Cross-play between the PS3 and the PS4 is possible in general, but that doesn't mean that all games will support it. Just because a particular title is available on the PS3 and PS4, that doesn't mean that it is the same game on both consoles, or that the two versions are compatible for online play.